OPCache not installed by default

[Coffee2CodeNL]

Hey.

It appears you didn't install OPCache by default.
This is an important plugin when it comes to performance, and installing it afterwards is an extreme hassle because it needs scripts.

[Coffee2CodeNL]

Thanks for fixing @richarvey !

Don't forget to add:

echo "opcache.max_accelerated_files = 130987" >> /usr/local/etc/php/conf.d/docker-vars.ini
echo "realpath_cache_size=4096K" >> /usr/local/etc/php/conf.d/docker-vars.ini
echo "realpath_cache_ttl=600" >> /usr/local/etc/php/conf.d/docker-vars.ini